In the Linux kernel, the following vulnerability has been resolved:

cifs: fix potential use-after-free bugs in TCP_Server_Info::hostname

TCP_Server_Info::hostname may be updated once or many times during
reconnect, so protect its access outside reconnect path as well and
then prevent any potential use-after-free bugs.

No CVSS v4.0

Attack Vector Local

Attack Complexity High

Privileges Required Low

Scope Unchanged

Confidentiality Impact High

Integrity Impact High

Availability Impact High

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

The EPSS score is 0.00026.

Key SSVC decision points have not yet been added.

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions
Linux Linux unaffected
Version Status Constraints
93d5cb517db39e8af8d1292f9e785e4983b7f708 affected < 64d62ac6d6514cba1305bd08e271ec1843bdd612
93d5cb517db39e8af8d1292f9e785e4983b7f708 affected < c511954bf142fe1995aec3c739a9f1a76990283a
93d5cb517db39e8af8d1292f9e785e4983b7f708 affected < 0b08c4c499200be67d54c439d56e5ea866869945
93d5cb517db39e8af8d1292f9e785e4983b7f708 affected < 90c49fce1c43e1cc152695e20363ff5087897c09
Linux Linux affected
Version Status Constraints
5.0 affected —
0 unaffected < 5.0
6.1.28 unaffected ≤ 6.1.*
6.2.15 unaffected ≤ 6.2.*
6.3.2 unaffected ≤ 6.3.*
6.4 unaffected ≤ *

No data.

No data.

No data.

Project Subscriptions

Vendors Products
Linux Subscribe
Linux Kernel Subscribe
Advisories

No advisories yet.

Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References
Link Providers
https://git.kernel.org/stable/c/0b08c4c499200be67d54c439d56e5ea866869945 cve-icon cve-icon
https://git.kernel.org/stable/c/64d62ac6d6514cba1305bd08e271ec1843bdd612 cve-icon cve-icon
https://git.kernel.org/stable/c/90c49fce1c43e1cc152695e20363ff5087897c09 cve-icon cve-icon
https://git.kernel.org/stable/c/c511954bf142fe1995aec3c739a9f1a76990283a cve-icon cve-icon
https://lore.kernel.org/linux-cve-announce/2025120842-CVE-2023-53751-2ff2@gregkh/T cve-icon
https://nvd.nist.gov/vuln/detail/CVE-2023-53751 cve-icon
https://www.cve.org/CVERecord?id=CVE-2023-53751 cve-icon
History

Wed, 10 Dec 2025 12:15:00 +0000

Type Values Removed Values Added
References
Metrics threat_severity

None

 cvssV3_1

{'score': 7.0, 'vector': 'CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H'}

threat_severity

Important

Mon, 08 Dec 2025 02:00:00 +0000

Type Values Removed Values Added
Description In the Linux kernel, the following vulnerability has been resolved: cifs: fix potential use-after-free bugs in TCP_Server_Info::hostname TCP_Server_Info::hostname may be updated once or many times during reconnect, so protect its access outside reconnect path as well and then prevent any potential use-after-free bugs.
Title cifs: fix potential use-after-free bugs in TCP_Server_Info::hostname
First Time appeared Linux
Linux linux Kernel
CPEs cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
Vendors & Products Linux
Linux linux Kernel
References

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: Linux

Published:

Updated: 2026-01-05T10:32:40.396Z

Reserved: 2025-12-08T01:18:04.279Z

Link: CVE-2023-53751

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Awaiting Analysis

Published: 2025-12-08T02:15:50.590

Modified: 2025-12-08T18:26:19.900

Link: CVE-2023-53751

cve-icon Redhat

Severity : Important

Publid Date: 2025-12-08T00:00:00Z

Links: CVE-2023-53751 - Bugzilla

cve-icon OpenCVE Enrichment

No data.

Weaknesses

No weakness.